Home / 1,432,185.16-1,976,376.10-787,605.36

Finding the Fourth Proportional to 1,432,185.16, 1,976,376.10 and 787,605.36

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Solution

The fourth proportional to 1,432,185.16, 1,976,376.10 and 787,605.36 is: 1,086,873.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,185.16 : 1,976,376.10 = 787,605.36 : x
  2. Step 2: Convert to fraction form
    1,432,185.16/1,976,376.10 = 787,605.36/x
  3. Step 3: Cross multiply
    1,432,185.16x = 1,976,376.10 × 787,605.36
  4. Step 4: Simplify right side
    1,432,185.16x = 1,556,604,409,735.90
  5. Step 5: Solve for x
    x = 1,556,604,409,735.90/1,432,185.16
  6. Step 6: Final answer
    x = 1,086,873.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.